Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
016	MANAGERS, PROPERTIES AND REAL ESTATE	166
019	MANAGERS AND ADMINISTRATORS, N.E.C.	2,181	1,224
029	BUYERS, WHOLESALE AND RETAIL TRADE, EXCEPT FARM PRODUCTS	797	797
048	CHEMICAL ENGINEERS	489	156
053	CIVIL ENGINEERS	67
055	ELECTRICAL AND ELECTRONIC ENGINEERS	771
056	INDUSTRIAL ENGINEERS	81
059	ENGINEERS, N.E.C.	1,085
073	CHEMISTS, EXCEPT BIOCHEMISTS	343	14
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	1,358	956
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	77	46
216	ENGINEERING TECHNICIANS, N.E.C.	6
224	CHEMICAL TECHNICIANS	1,713	441
225	SCIENCE TECHNICIANS, N.E.C.	322	242
235	TECHNICIANS, N.E.C.	368
243	SUPERVISORS AND PROPRIETORS, SALES OCCUPATIONS	778
257	SALES OCCUPATIONS, OTHER BUSINESS SERVICES	2,143
259	SALES REPRESENTATIVES, MINING, MANUFACTURING, AND WHOLESALE	2,091
274	SALES WORKERS, OTHER COMMODITIES	1,415
276	CASHIERS	885	885
307	SUPERVISORS; DISTRIBUTION, SCHEDULING, AND ADJUSTING CLERKS	2,993
308	COMPUTER OPERATORS	144	144
318	TRANSPORTATION TICKET AND RESERVATION AGENTS	1,118	233
356	MAIL CLERKS, EXC. POSTAL SERVICE	6,318	469
357	MESSENGERS	2,589
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	4,187	72
365	STOCK AND INVENTORY CLERKS	661	116
366	METER READERS	332
368	WEIGHERS, MEASURERS, AND CHECKERS	83
385	DATA-ENTRY KEYERS	982
453	JANITORS AND CLEANERS	39,676	1,103
455	PEST CONTROL OCCUPATIONS	1,931
465	PUBLIC TRANSPORTATION ATTENDANTS	1,455	243
479	FARM WORKERS	403
486	GROUNDSKEEPERS AND GARDENERS, EXCEPT FARM	4,177	365
496	TIMBER CUTTING AND LOGGING OCCUPATIONS	1,407
503	SUPERVISORS, MECHANICS AND REPAIRERS	719
505	AUTOMOBILE MECHANICS	28,744
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	23,614	539
514	AUTOMOBILE BODY AND RELATED REPAIRERS	321
515	AIRCRAFT MECHANICS, EXC. ENGINE	1,220	70
516	HEAVY EQUIPMENT MECHANICS	11,399	81
518	INDUSTRIAL MACHINERY REPAIRERS	6,999
519	MACHINERY MAINTENANCE OCCUPATIONS	308
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	1,780
533	MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS	1,192
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	1,148	25
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	5,252
549	NOT SPECIFIED MECHANICS AND REPAIRERS	18,695
558	SUPERVISORS, N.E.C.	6,035
563	BRICKMASONS AND STONEMASONS	5,133
567	CARPENTERS	17,789	1,738
575	ELECTRICIANS	12,512
576	ELECTRICIAN APPRENTICES	368
577	ELECTRICAL POWER INSTALLERS AND REPAIRERS	6,491
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	9,214
588	CONCRETE AND TERRAZZO FINISHERS	2,386
593	INSULATION WORKERS	794	161
595	ROOFERS	2,593
596	SHEETMETAL DUCT INSTALLERS	2,136
597	STRUCTURAL METAL WORKERS	2,637
598	DRILLERS, EARTH	3,446
599	CONSTRUCTION TRADES, N.E.C.	3,769
617	MINING OCCUPATIONS, N.E.C.	968
633	SUPERVISORS, PRODUCTION OCCUPATIONS	1,881
637	MACHINISTS	6,189
653	SHEET METAL WORKERS	886
677	OPTICAL GOODS WORKERS	7	7
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	1,885
689	INSPECTORS, TESTERS, AND GRADERS	217
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	6,638
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	129
724	HEAT TREATING EQUIPMENT OPERATORS	3,772
727	SAWING MACHINE OPERATORS	3,287
756	MIXING AND BLENDING MACHINE OPERATORS	447
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	3,806
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	681
768	CRUSHING AND GRINDING MACHINE OPERATORS	879
769	SLICING AND CUTTING MACHINE OPERATORS	347
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	6,909	174
779	MACHINE OPERATORS, NOT SPECIFIED	26,530	4,352
783	WELDERS AND CUTTERS	8,315
785	ASSEMBLERS	4,587	1,372
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	439
797	PRODUCTION TESTERS	327
804	TRUCK DRIVERS, HEAVY	87,813	923
805	TRUCK DRIVERS, LIGHT	12,732	362
806	DRIVER-SALES WORKERS	10,850	1,301
808	BUS DRIVERS	15,109	9,940
809	TAXI CAB DRIVERS AND CHAUFFEURS	12,265	6,341
833	MARINE ENGINEERS	3,509
843	SUPERVISORS, MATERIAL MOVING EQUIPMENT OPERATORS	210
844	OPERATING ENGINEERS	13,872	58
849	CRANE AND TOWER OPERATORS	2,356
853	EXCAVATING AND LOADING MACHINE OPERATORS	763
855	GRADER, DOZER, AND SCRAPER OPERATORS	90
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	8,697
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	5,843
869	CONSTRUCTION LABORERS	50,154	208
873	PRODUCTION HELPERS	2,555
875	GARBAGE COLLECTORS	4,417
878	MACHINE FEEDERS AND OFFBEARERS	1,362
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	10,498
885	GARAGE AND SERVICE STATION RELATED OCCUPATIONS	122,047	24,353
887	VEHICLE WASHERS AND EQUIPMENT CLEANERS	4,551
889	LABORERS, EXCEPT CONSTRUCTION	27,775	166
TOTAL		738,881	59,676

*(1) The estimates for each occupation apply across the surveyed industries in which the agent was observed. Not all industries were surveyed, and not all agents were observed in all surveyed industries. (2) When using the estimates, standard errors associated with estimates should be considered. (3) Potential exposures to a chemical agent are categorized as actual (i.e., the surveyor observed the use of the specific agent) or tradename (i.e., the surveyor observed the use of a tradename product known to contain the specific agent). The estimates presented in the table combine both categories.